我很困惑哪一个对Android的观点有好处Ormlite或者sqlite.请你能给我一个建议,哪个更适合使用我们的Android应用程序.并使易用和支持所有Android设备？我想在我们的项目中使用ormlite,但在此之前我想确定它对我和我的应用程序是否有用.如果有人在此之前使用过,请指导我.我非常感谢你的想法.Thnaks
我收到错误org.json.JSONException:PROJECT_NAME没有值这是我的json
{"PROJECTS":[
{
"PROJECT_NUMBER": "2062",
"PROJECT_NAME": "OPW 51183"
},
{
"PROJECT_NUMBER": "404",
"PROJECT_NAME": "404"
},
{
"PROJECT_NUMBER": "2125",
"PROJECT_NAME": "OPW 50016"
},
{
"PROJECT_NUMBER": ""
},
{
"PROJECT_NUMBER": "2130",
"PROJECT_NAME": "OPW 51151 63rd & Shirley SEW S"
},
{
"PROJECT_NUMBER": "2159",
"PROJECT_NAME": "OPW 51226"
}
]
}
和鳕鱼是:
for (int i = 0; i < innerProjectarray.length(); i++)
{
JSONObject obj=innerProjectarray.getJSONObject(i);
String projectnumber1=obj.getString("PROJECT_NUMBER");
String projectname1=obj.getString("PROJECT_NAME");
}
有没有办法找到密钥,如果密钥不存在,那么np需要获取值od特定字符串帮助我谢谢
我只是从sdk管理器更新android sdk API-19和buildtool-19.但是在启动eclipse时会显示标题上提到的控制台错误.当我创建avd for android 4.4模拟器时,还有一件事就是在运行模拟器列表中没有显示.请解决此问题
如何检查pancard的edittext验证,如"ABCDE1234F".我很困惑如何检查这个验证.请帮帮我们.我会感激任何帮助.
启动我的应用时出现这些日志错误:
> 05-20 01:48:35.312: E/AndroidRuntime(23032): FATAL EXCEPTION: main
05-20 01:48:35.312: E/AndroidRuntime(23032): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tomsyweb.suna/com.tomsyweb.suna.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class com.origamilabs.library.views.StaggeredGridView
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.os.Handler.dispatchMessage(Handler.java:99)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.os.Looper.loop(Looper.java:130)
05-20 01:48:35.312: E/AndroidRuntime(23032): at android.app.ActivityThread.main(ActivityThread.java:3687)
05-20 01:48:35.312: E/AndroidRuntime(23032): at java.lang.reflect.Method.invokeNative(Native Method)
05-20 01:48:35.312: E/AndroidRuntime(23032): at java.lang.reflect.Method.invoke(Method.java:507)
05-20 01:48:35.312: E/AndroidRuntime(23032): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
05-20 01:48:35.312: …我遇到一个奇怪的问题:getActivity()方法总是在片段内返回null.我在onAttach()和onCreateView()完成运行后调用它.
这个片段存在于包含片段堆栈的FragmentActivity()中,我向其添加片段的方式是:
(此代码是从Fragment Activity()的onCreate()调用的)
SmartFragment fragment;
fragment = (SmartFragment) Fragment.instantiate(this,
fragmentClassName, params);
mStackOfFragments.add(fragment);
FragmentTransaction trans = getSupportFragmentManager().beginTransaction();
trans.add(R.id.tabcontent, fragment);
trans.addToBackStack(null);
trans.commitAllowingStateLoss();
我希望它足够清楚
编辑1:
对getActivity()的调用:
protected OnDoneListener nDoneListener = new OnDoneListener() {
@Override
public void OnDone(final int counter, final String name) {
if (getActivity() != null)
((TabActivity) getActivity()).RunOnUiThread(new Runnable() {
......
这个回调是从另一个类调用的.
编辑2:
class MemoryManager()
{
private OnDoneListener nDoneListener;
public void setOnDoneListener(OnDoneListener onDoneListener)
{
this.onDoneListner = onDoneListener;
}
public void updateUiOnRequestFinish()
{
onDoneListener.onDone();
}
}
MemoryManaget本身从另一个回调调用updateUiOnRequestFinish()
编辑3:
FragmentManager日志是:
04-08 …我已经开发了一个应用程序.现在我正在尝试将twitter集成到我的应用程序中.我的问题是当我登录应用程序时它显示"android.os.NetworkOnMainThreadException""at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)".
请任何人帮助我谢谢......
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.RequestToken;
import twitter4j.conf.ConfigurationBuilder;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class TwitterActivity extends Activity {
static final String CONSUMER_KEY="my consumer key";
static final String CONSUMER_SECRETKEY="my secret key";
Button buttonLoginTwitter;
SharedPreferences sharedpref;
Twitter twitter;
private static RequestToken requestToken;
static final String TWITTER_CALLBACK_URL = "oauth://t4jsample";
static final String ISTWITTERLOGIN="isTwitterLogedIn";
@Override
protected void onCreate(Bundle savedInstanceState) { …我从xml制作了布局模拟器大小的布局.但是当在Android手机设备上以相同的布局打开然后每个东西都扭曲了,那么我可以制作一个xml布局,它也可以在设备手机和平板电脑上正常工作.请建议我,感谢您的回答.
我试图将字符串格式的值"0000002"传递给下一个活动,如下所示:
Intent pass = new Intent(this, SecondActivity.class);
pass.putExtras("EmpID", "0000002");
在第二次活动中
Bundle info = getIntent().getExtras();
System.out.println("Test " + info.getString("EmpID")); // this line printing "null" value instead of "0000002".
我能够成功传递和获取其他字符串.我无法获取EmpID.
请帮我.
我现在编辑了...我检查布局和初始化但仍然是相同的错误..它可能是日食错误？
public class ActivityOwner extends Activity implements OnClickListener {
EditText ownerUser, ownerPass;
private Button btnLogin;
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
private static final String OWNER_LOGIN_URL = "http://192.168.2.5/idot/owner_login.php";
// ---JSON element ids from response of php script
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_owner);
ownerUser = (EditText) findViewById(R.id.owner_login_username);
ownerPass = (EditText) findViewById(R.id.owner_login_password);
TextView tvLinkToRegister = (TextView) findViewById(R.id.link_to_register);
tvLinkToRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void …